Function starpu_task_wait_array 

pub unsafe extern "C" fn starpu_task_wait_array(
    tasks: *mut *mut starpu_task,
    nb_tasks: c_uint,
) -> c_int

Allow to wait for an array of tasks. Upon successful completion, this function returns 0. Otherwise, -EINVAL indicates that one of the tasks was either synchronous or detached. See \ref WaitingForTasks for more details.